Barton Brooks and his partner Gregg are on their next surprise trip with Barton’s mother, Carla. And this time they took a detour through the Pearl of the Danube — Budapest!

When Carla’s husband, Karl, died last year she felt alone and lost, so Barton began planning a series of 20 whirlwind adventures through Europe — one for each year she took care of Karl, who suffered a stroke two decades before he passed away. The crew has already visited Paris, EuroDisney, Switzerland, England and two adventures in Wales.

With suggestions from PEOPLE readers, the group stopped in Budapest to visit the historical Buda Castle, pose for photos at the Fisherman’s Bastion and even take bow and arrow lessons from a local! “It’s been years since I shot an arrow, and it was fun!” exclaims Carla.

Barton, Carla and Gregg are headed to Prague next, and they’d love some tips on local musts — please leave them suggestions in the comments below (they can’t wait to hear from you!). We’ll post a new episode of “Carla’s Comeback” every Wednesday, so be sure to follow all 20 of their adventures here!